@prefix n9j: <http://data.loterre.fr/ark:/67375/N9J> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .

n9j:-concepts
  a isothes:ConceptGroup ;
  skos:prefLabel "concepts"@en ;
  skos:member n9j:-JJ6K7RP8-8 .

n9j: a skos:ConceptScheme .
n9j:-JJ6K7RP8-8
  owl:sameAs <https://concepts.sagepub.com/social-science/concept/Ghana_Empire> ;
  skos:definition "Around the 3rd century B.C.E., nomadic groups herding animals in West Africa on the fringes of the Sahara became a threat to the Soninke people who lived south of the desert as farmers. The Soninke formed a confederation and defended themselves against the nomads and eventually formed the kingdom of Ghana. [Source: Encyclopedia of Black Studies; Ghana Empire]"@en ;
  a skos:Concept ;
  skos:inScheme n9j: ;
  skos:broader n9j:-J8WGZ0TC-7 ;
  skos:prefLabel "Ghana Empire"@en .

n9j:-J8WGZ0TC-7
  skos:prefLabel "population"@en ;
  a skos:Concept ;
  skos:narrower n9j:-JJ6K7RP8-8 .